Oliver eolborne



0.00LB0RNE.

VISEQ- Patented June 21, 1898.-

HmmmMid e Y @igen e UNITED.- STATES.'

PATENT OFFICE.

OLIVER COLBORNEKOF CHICAGO, ILLINOIS.

SPECIFICATION formingpart of` Letters PatentqNo. 605,855, dated June 21, 1898. l Application: filed December Z0, 1897. Serial No. 662 ,576. (No model.)

work during the operation of ling,ifitting,'

polishing, and the like. This is a class of work which must necessarily be done by hand,

' the vise being an important adjunct in the sirable to have the vise constructed so that operation. In order that the time required for placing and holding the work in its various positions andV the expense of the work may be reduced to a minimum, it is very devise in the hands of careless workmen, whof can not or will not always gage the pressure to the character of Work they are handling, fragile articles-such as tubing, sheet-metal forms, and the like-are liable to be crushed or collapsed by the unnecessary force hastilyapplied to thevise-screw. r

In order to overcome the difficulties which lI have enumerated,l I haveA designed a vise which will exert a certain predetermined pressure for articles of approximate uniform diameter.

opened to receive the work by simply com-v pressing a spring by the application of the necessary levers, the resilience of the spring alone holding vthe jaws of the visetogether with the necessary force to retain'the work in operative condition. I. accomplish these results by means of the device illustrated in the accompanying drawings, in whicl1-. f'

Figure I is a vertical elevation, partly in section. Fig. 2 is a perspective view looking I have further simplified the ma-l nipulation thereof, so that the jaws'. may bev from above,with the handle E removed. Fig. 3 is a section taken on the lineV 3 of Figs. 1 and 2. Fig. 4 is the rear View of cap F and washer I-I. j

Similar letters refer to like parts throughout the'several views.

A is a split housing-ring cast in one piece.

B is a permanent jaw, with reference to any lateral motion; but it may be rotated and base-plate within the split ring A and vclamped firmly in any position by means of set-screw g. C is the movable jaw, carried by a rod G and attached thereto by means of the nut c. :"D is a'strong coiled open spring having a bearing within a slotin B andl against a washer H. v

E Yis a lever vused for opening the vise.

F is `a cap. covering the rear portion of the `spring D, attached to the portion B by means of la screw b. Itis grooved at f, in which the extension f on'cap-or washer H is guided to prevent rotationof rod G. (Shown in Fig. 4:.)

G is a rod extending through and having loose guide-bearing in portion B. The pinj" and slot f permit free lateral motion, but prevent the rod G from rotating within B. The rod G extends beyond the housing at the rear end and forms an anvil to receive the pressure from the lever E. At the other end thelr piece C is firmly attachedv by means of nuto' and feather lo.

' H is a washer for supporting the rear end Vof the spring D and attached to the rod G by means of adjustablenutd or by any suitable means. l .p

a a ct a" are removable steel -jawsmade in any desired shape to conformtothe work to be done in the vise. Thelillustr'ation shows the'jawsdesigned for holding-tubes oftwo different sizes. They may be removed and other jaws for a different class of work may be substituted when it becomes desirable.

The operation of my device is as follows: To open the vise to insert work-as, for' instance, to place a tube between the jaws c t ctit is only necessary to pull the lever E'with some force against thel rod G. This. compresses the spring D and allows the portion C, with the jaws a a', to move out, so that the tube may be easily inserted. Releasing the lever E the resilience of the spring D will exert sufficient force to hold the rod iirmly in position between the jaws B C, so that any kind of work may be done in this vise that is usual in the practice ol visework, with the possible exception of chipping. In the practical use of my vise, however, I have not found this to be necessary. The jaws may be turned to any position desired by loosening set-screw y, which will permit the entire clamping portion to be freely revolved in ring A, so that jaws a a may be brought to the position new occupied by a a.

Having described my invention, what I desire to secure by Letters Patent isl. In a vise, a stationary jaw rotatably held by a supporting-base, a guide passing through and having a loose guided bearing within the said stationary jawpiece, a movable jaw mounted on or made integral with the said guide, in combination with a spring associated with the said jaws and adapted to hold them together, and a means for adjusting the tension of the said spring, substantially as and for the purpose described.

2. In avise, a stationary jaw, rotatably held by a supporting-base, a guide-rod passing through and having a loose guided bearing within the said stationary jaw-piece, a spring adapted to hold thejaws together,and a means for adjusting the tension ot the said spring; in combination with a movable jaw mounted on and moving horizontally with the said guide-rod, substantially as shown and described.

3. In a vise, a stationary jaw rotatably held by a supporting-base, a guide-rod passing through and having a loose guided bearing within the said stationary jaw-piece, a spring surrounding the said rod and adapted to hold the jaws together, and a means for adjusting the tension ofthe said spring; in combination with a movable jaw, mounted on and moving horizontally with the said guide-rod, substantially as shown and described.

l. In a vise, the combination of a stationary jaw, rotatably held in a base-piece, a movable jaw mounted on and moving with a guide-rod, the said guide-rod passing through the stationary jaw, a spiral spring surrounding the said guide-rod and adapted to exert a pressure between the said jaws for holding them together, ameans for adjusting the tension of the said spring, and a lever Vfor separating the said jaws, substantially as shown and doscribed.

5. In avise, the combination of a base-piece A, provided with an adjustable supportingring, the jaw-piece ll, rotatably supported therein, aguide-rod G, havinga reciprocating bearing within the said jaw-piece B, a jaw C carried by the said guide-rod and a spring D adapted to hold the jaws together, substantially as shown and described.

G. In a vise, the combination of a base containing a ring, a stationary jaw-piece supported therein, a guide-rod passing through the said stationary jaw, a horizontally-movable jaw mounted on the said guide-rod,a spring adapted to hold the said jaws together, and a lever tor separating the said jaws, substantially as shown and described.

OLIVER, COI/BORNE.

IVitnesses:

FoRE BAIN, F. J. GUILD. 

